by John Walker January 4, 1994 Fly's Eye The University of Utah operates a cosmic ray detector called the Fly's Eye II, situated at the Dugway Proving Ground about an hour's drive from Salt Lake City. The Fly's Eye consists of an array of telescopes which stare into the night sky and record the blue flashes which result when very high energy cosmic rays slam into the atmosphere. From the height and intensity of the flash, one can calculate the nature of the particle and its energy. On the night of October 15, 1991, the Fly's Eye detected a proton with an energy of 3.2±0.9×1020 electron volts.[1,2] By comparison, the recently-canceled Superconducting Super Collider (SSC) would have accelerated protons to an energy of 20 TeV, or 2×1013 electron volts—ten million times less. All evidence points to these extremely high energy particles being protons—the nuclei of hydrogen atoms. Microbial Mass How Fast? How fast was it going? And thus, approximately: v = 0.9999999999999999999999951 c Quicktime
Alcubierre Warp Drive Time TravelAn Alcubierre Warp Drive stretches spacetime in a wave causing the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship can ride the wave to accelerate to high speeds and time travel. The Alcubierre drive, also known as the Alcubierre metric or Warp Drive, is a mathematical model of a spacetime exhibiting features reminiscent of the fictional "warp drive" from Star Trek, which can travel "faster than light" (although not in a local sense - see below). The key characteristics of the application of Alcubierre warp drives for time control and time travel are presented in the picture below. This is followed by more detail describing the effect below. Alcubierre Warp Drive Description In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. Alcubierre Metric Mathematics of the Alcubierre drive
The Relativity of Wrong by Isaac Asimovby Isaac Asimov I received a letter from a reader the other day. It was handwritten in crabbed penmanship so that it was very difficult to read. Nevertheless, I tried to make it out just in case it might prove to be important. In the first sentence, he told me he was majoring in English Literature, but felt he needed to teach me science. It seemed that in one of my innumerable essays, here and elsewhere, I had expressed a certain gladness at living in a century in which we finally got the basis of the Universe straight. I didn't go into detail in the matter, but what I meant was that we now know the basic rules governing the Universe, together with the gravitational interrelationships of its gross components, as shown in the theory of relativity worked out between 1905 and 1916. These are all twentieth-century discoveries, you see. The young man then quoted with approval what Socrates had said on learning that the Delphic oracle had proclaimed him the wisest man in Greece. "Wrong!"
World's best info-graphics show us the value of body parts, surname distribution and what makes a great novelInformation Is Beautiful Awards celebrated the best data graphicsGraphics showed anything from the monetary value of a human brain to the most common Alaskan surnames By Graham Smith Published: 15:55 GMT, 2 October 2012 | Updated: 16:29 GMT, 2 October 2012 A map of the human body that lists the value of each body part; a map of the U.S. that marks the most popular surnames; and a graphic that shows what plot details make a great novel. These were just three of the entries at the Information Is Beautiful Awards ceremony in London last week, celebrating the most ingenious methods of making numbers and facts visually interesting. The body parts map provides the price in sterling for every limb, organ and gland based on the growing industry of human tissue recovery. The researchers calculated the values from prices charged by human tissue recovery agencies that collect body parts for research. If you could do away with your brain altogether, expect to be paid £10,707 for all its parts.
Atomic Test Effects in the Nevada Test Site RegionThirty-one atomic fission weapons, weapon prototypes, or experimental devices were fired in Nevada from January 1951 to January 1955. All were relatively small in explosive power. They ranged from less than one kiloton up to considerably less than 100 kilotons. (A kiloton is equal to 1,000 tons of TNT.) The forces released by test detonations in Nevada are very small compared to the tremendous forces released by the large fission and hydrogen weapons tested in the Pacific. So-called "H-bombs" are not tested in Nevada. Despite their relatively low yield, Nevada tests have clearly demonstrated their value to all national atomic weapons programs. Each Nevada test has successfully added to scientific knowledge needed for development and for use of atomic weapons, and needed to strengthen our defense against enemy weapons. An unusual safety record has been set. There were instances of property damage from blast, such as broken windows. Exposure to Flash Past Experience With Flash The U.
10 Futuristic MaterialsLifeboat Foundation Safeguarding Humanity Skip to content Switch to White Special Report 10 Futuristic Materials by Lifeboat Foundation Scientific Advisory Board member Michael Anissimov. 1. Aerogel protecting crayons from a blowtorch. This tiny block of transparent aerogel is supporting a brick weighing 2.5 kg. Aerogel holds 15 entries in the Guinness Book of Records, more than any other material. Carbon nanotubes are long chains of carbon held together by the strongest bond in all chemistry, the sacred sp2 bond, even stronger than the sp3 bonds that hold together diamond. “Metamaterial” refers to any material that gains its properties from structure rather than composition. We’re starting to lay down thick layers of diamond in CVD machines, hinting towards a future of bulk diamond machinery. Diamonds may be strong, but aggregated diamond nanorods (what I call amorphous fullerene) are stronger. Transparent alumina is three times stronger than steel and transparent. inShare28 Materials
NASA: Don't Let This Happen to Your PlanetPhysics envyIn science, the term physics envy is used to criticize a tendency (perceived or real) of softer sciences and liberal arts to try to obtain mathematical expressions of their fundamental concepts, as an attempt to move them closer to harder sciences, particularly physics. Evolutionary biologist Ernst Mayr discusses the issue of the inability to reduce biology to its mathematical basis in his book What Makes Biology Unique?. Noam Chomsky discusses the ability and desirability of reduction to its mathematical basis in his article "Mysteries of Nature: How Deeply Hidden." See also Notes Jump up ^ For example, Eugene Wigner remarked "The miracle of the appropriateness of the language of mathematics for the formulation of the laws of physics is a wonderful gift which we neither understand nor deserve References Chomsky, N. (2009). External links Overcoming ‘Physics Envy’, op-ed by two political scientists.
Brief Answers to Cosmic QuestionsStructure of the Universe Does the Universe have an edge, beyond which there is nothing? Are the galaxies arranged on the surface of a sphere? Why can't we see the whole universe? Does the term "universe" refer to space, or to the matter in it, or to both? Evolution of the Universe Did the Universe expand from a point? If so, doesn't the universe have to have an edge? More about the Big Bang When they say "the universe is expanding," what exactly is expanding? Structure of the Universe Does the Universe have an edge, beyond which there is nothing? Are the galaxies arranged on the surface of a sphere? Why can't we see the whole universe? If you could suddenly freeze time everywhere in the universe, and magically survey all of creation, you would find galaxies extending out far beyond what we can see today. Does the term "universe" refer to space, or to the matter in it, or to both? Today, the situation is reversed. Evolution of the Universe Did the Universe expand from a point?